Back brake issues

I did the back brakes last week and eveyone told me the parking brakes never wear out. Well there were wore out and so was the back plate. I didn't have the part so I did new rotors callipers and the best long wear pads. The young man helping me messed up one of the bolts, the one that holds the main bracket. this bolt got messed up on the way out and got stuck so I had to grind the 3/4 ratchet to get it out. Going back in was allmost impossable, when I take this all apart again to do the backing plate and parking shoes Should I retap this hole? What do you guys think?
Thanks Eric

Yes, by all means re-tap that hole and get a new bolt. I replaced backing plate and shoes on my 2000 Yukon and used the one piece replacement plates which required the axles to be pulled. Another individual on this site used a two peice with good results.